[Mesa-dev] [Bug 93126] wrongly claim supporting GL_EXT_texture_rg

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=93126

Ilia Mirkin  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Ilia Mirkin  ---
Pushed as

commit 0396eaaf80c5d7955d7926c4e448f006c7682d2e
Author: Ilia Mirkin 
Date:   Thu Nov 26 10:32:57 2015 -0500

mesa: support GL_RED/GL_RG in ES2 contexts when driver support exists

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93126
Signed-off-by: Ilia Mirkin 
Reviewed-by: Eduardo Lima Mitev 
Cc: "11.0 11.1" 

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[Mesa-dev] [Bug 93126] wrongly claim supporting GL_EXT_texture_rg

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=93126

Bug ID: 93126
   Summary: wrongly claim supporting GL_EXT_texture_rg
   Product: Mesa
   Version: git
  Hardware: Other
OS: All
Status: NEW
  Severity: normal
  Priority: medium
 Component: Mesa core
  Assignee: mesa-dev@lists.freedesktop.org
  Reporter: julien.iso...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org

es2_info prints:

GL_VERSION: OpenGL ES 2.0 Mesa 11.2.0-devel
GL_RENDERER: Gallium 0.4 on NVC1
GL_EXTENSIONS contains GL_EXT_texture_rg

But glTexImage2D(..., GL_RED_EXT, GL_UNSIGNED_BYTE, data) fails.

Indeed  if GLES2.0 then
http://cgit.freedesktop.org/mesa/mesa/tree/src/mesa/main/glformats.c#n2079 .
There is no case for GL_RED_EXT in the switch so it defaults to
GL_INVALID_VALUE.

I can see EXT(EXT_texture_rg, ARB_texture_rg,  x ,  x ,  x , ES2, 2011) in
extensions_table.h

Hardware: NVIDIA Corporation GF108 [GeForce GT 430] (rev a1)

Could it be that when querying dri2 for the gl version it returns 20 instead of
30 ?

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[Mesa-dev] [Bug 93126] wrongly claim supporting GL_EXT_texture_rg

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=93126

--- Comment #1 from Ilia Mirkin  ---
Created attachment 120147
  --> https://bugs.freedesktop.org/attachment.cgi?id=120147=edit
fix rg support on es2

Does the attached patch fix it? Not sure how you're ending up with ES2
though... I thought it'd automatically get upgraded to ES3.0... Perhaps you
built without float texture support? But that should still not be required for
ES3...

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[Mesa-dev] [Bug 93126] wrongly claim supporting GL_EXT_texture_rg

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=93126

--- Comment #2 from Julien Isorce  ---
I confirm your patch fixes the problem. (tested with glTexImage2D(...,
GL_RED_EXT) + glCheckFramebufferStatusEXT). Thx Ilia :)

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